Connecting structure for drill bit with quick disassembly and assembly function

Abstract

The utility model relates to the technical field of drill bits, and discloses a connecting structure for a drill bit with a quick disassembly and assembly function, which comprises a drill rod, a drill handle is arranged at the upper end of the drill rod, a chip pocket is arranged on the outer side of the drill rod, and a tool bit is arranged at the lower end of the drill rod. According to the connecting structure for the drill bit with the quick disassembly and assembly function, when a drill rod needs to be fixed to the connecting rod, a drill handle and a butt joint groove are aligned and inserted, a locking rod is rotated till the locking rod is inserted into a groove body, the drill rod is limited, a rubber mat makes contact with the drill rod at the moment, the stability of the drill rod is improved, and a sleeve is used for being locked with a connecting ring and the locking rod in a threaded mode; the fixing structure of the drill rod and the connecting rod is reinforced, the installation speed is high, when the drill rod needs to be disassembled and replaced, the sleeve is rotated to enable the sleeve to be separated from the locking rod and the connecting ring, at the moment, the spring rebounds to eject the top plate and eject the locking rod to be separated from the groove body, and the drill rod can be easily taken down. The drill bit replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a connection structure for a drill bit with a quick disassembly and assembly function. Background Art

[0002] A drill bit is a tool used to make holes in various materials and is commonly found in fields such as metal processing. A drill bit usually consists of a cutting part and a connecting part. The cutting part includes a blade and a tip, which is used to cut the workpiece, while the connecting part is used to connect to processing equipment such as drilling machines and handheld drills.

[0003] China Utility Model Patent Publication No.: CN 216990023 U, discloses: a drill bit, which can be easily disassembled and replaced through a locking structure and a limiting structure, thereby improving production efficiency, and has a simple structure and is easy to implement. However, the drill bit only clamps the drill shank through a buckle to fix the connecting part to the drill shank, and the structural firmness is low, the fixing effect is not good, and the drill bit has poor stability when drilling, which affects the drilling efficiency. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a connection structure for a drill bit with a quick disassembly and assembly function, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by the utility model is: a connection structure for a drill bit with a quick disassembly and assembly function, comprising a drill rod, a drill shank is arranged at the upper end of the drill rod, a chip groove is arranged on the outer side of the drill rod, a cutter head is arranged at the lower end of the drill rod, a locking groove is arranged on the outer side of the drill rod, a connecting rod is arranged at the upper end of the drill shank, a limiting ring is arranged on the outer side of the connecting rod, a connecting tube is arranged at the lower end of the connecting rod, a connecting ring is fixedly connected to the lower end of the connecting rod, a shaft seat is fixedly connected to the lower end of the connecting rod, a locking rod is rotatably connected to the lower end of the shaft seat, a rubber pad is arranged on the inner side of the locking rod, a docking groove is arranged at the lower end of the connecting tube, a sleeve is arranged on the outer side of the connecting rod, and an anti-slip rib is arranged on the outer side of the sleeve;

[0006] The locking groove comprises a groove body, a telescopic groove, a spring and a top plate. The inner wall of the groove body is provided with a telescopic groove, the inner wall of the telescopic groove is fixedly connected with a spring, and the end of the spring is fixedly connected with the top plate.

[0007] Preferably, the drill shank has a triangular structure, and the docking groove is adapted to the drill shank.

[0008] Through the above technical solution, the drill handle has a triangular structure and is plug-connected with the docking groove, so the limiting effect is good.

[0009] Preferably, three identical locking grooves are provided, and the included angle of the three locking grooves is 120°.

[0010] Through the above technical solution, a locking groove is provided, which cooperates with the locking rod to fix the drill rod and the connecting rod.

[0011] Preferably, the connecting ring, the shaft seat, the locking rod and the rubber pad are provided in three identical groups, and the locking rod is adapted to the groove body.

[0012] Through the above technical solution, when the drill rod needs to be fixed with the connecting rod, the drill handle is aligned and inserted into the docking groove, and the locking rod is rotated until the locking rod is inserted into the groove body to limit the drill rod.

[0013] Preferably, a slope is formed at the lower end of the locking rod, and the rubber pad is made of silicone rubber.

[0014] Through the above technical solution, when the locking rod is plugged into the slot body, the rubber pad is in contact with the drill rod, thereby improving the stability of the drill rod.

[0015] Preferably, the inner wall of the sleeve is provided with threads, and the vertical section of the sleeve is an "L"-shaped structure.

[0016] Through the above technical solution, a casing is set up, and the casing is threadedly locked with the connecting ring and the locking rod until the casing is in tight contact with the limit ring. At this time, the casing presses and locks the locking rod to reinforce the fixed structure of the drill pipe and the connecting rod.

[0017] Preferably, the outer wall of the connecting ring and the outer wall of the locking rod are both provided with threads, and the sleeve is connected to the connecting ring and the locking rod by threads.

[0018] Through the above technical solution, a locking groove is set. When the drill rod needs to be disassembled and replaced, the casing is rotated to separate the casing from the locking rod and the connecting ring. At this time, the spring rebounds to push the top plate, and the locking rod is pushed out of the groove body. The drill rod can be easily removed, thereby improving the efficiency of drill bit replacement.

[0019] Compared with the prior art, the utility model provides a connection structure for a drill bit with a quick disassembly and assembly function, which has the following beneficial effects:

[0020] 1. The drill bit connection structure with quick disassembly and assembly function, when the drill rod needs to be fixed with the connecting rod, align the drill handle with the docking groove and plug it, rotate the locking rod until the locking rod is inserted into the groove body, limit the drill rod, at this time the rubber pad is in contact with the drill rod, improve the stability of the drill rod, use the casing and the connecting ring and the locking rod thread locking until the casing is in tight contact with the limiting ring, at this time the casing presses and locks the locking rod, the fixing structure of the drill rod and the connecting rod is reinforced, and the installation speed is fast;

[0021] 2. The drill bit connection structure with quick disassembly and assembly function is provided with a locking groove. When the drill rod needs to be disassembled and replaced, the casing is rotated to separate the casing from the locking rod and the connecting ring. At this time, the spring rebounds to push the top plate, and the locking rod is pushed out of the groove body, so that the drill rod can be easily removed, thereby improving the replacement efficiency of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 3 The utility model shows the split structure of the drill handle and the connecting rod. Figure 1 ;

[0025] Figure 4 The utility model shows the split structure of the drill handle and the connecting rod. Figure 2 ;

[0026] Figure 5 This is a schematic diagram of the disassembly structure of the casing and the connecting rod of the utility model;

[0027] Figure 6 This is a schematic diagram of the split structure of the locking groove of the utility model.

[0028] Among them: 1. drill rod; 2. drill shank; 3. chip groove; 4. cutter head; 5. locking groove; 501. groove body; 502. telescopic groove; 503. spring; 504. top plate; 6. connecting rod; 7. limit ring; 8. connecting pipe; 9. connecting ring; 10. shaft seat; 11. locking rod; 12. rubber pad; 13. docking groove; 14. casing; 15. anti-skid rib. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1: Figure 1-6As shown, the utility model provides a connection structure for a drill bit with a quick disassembly function, comprising a drill rod 1, a drill shank 2 is provided at the upper end of the drill rod 1, a chip groove 3 is provided on the outer side of the drill rod 1, a cutter head 4 is provided at the lower end of the drill rod 1, a locking groove 5 is provided on the outer side of the drill rod 1, a connecting rod 6 is provided at the upper end of the drill shank 2, a limiting ring 7 is provided on the outer side of the connecting rod 6, a connecting tube 8 is provided at the lower end of the connecting rod 6, a connecting ring 9 is fixedly connected to the lower end of the connecting rod 6, a shaft seat 10 is fixedly connected to the lower end of the connecting rod 6, a locking rod 11 is rotatably connected to the lower end of the shaft seat 10, a rubber pad 12 is provided on the inner side of the locking rod 11, a docking groove 13 is provided at the lower end of the connecting tube 8, a sleeve 14 is provided on the outer side of the connecting rod 6, and an anti-slip rib 15 is provided on the outer side of the sleeve 14;

[0031] The locking slot 5 comprises a slot body 501 , a telescopic slot 502 , a spring 503 and a top plate 504 . The inner wall of the slot body 501 is provided with a telescopic slot 502 , the inner wall of the telescopic slot 502 is fixedly connected with a spring 503 , and the end of the spring 503 is fixedly connected with a top plate 504 .

[0032] Specifically, the drill handle 2 is a triangular prism structure, and the docking groove 13 is adapted to the drill handle 2. The advantage is that the drill handle 2 is a triangular prism structure, and is plug-connected with the docking groove 13, and the limiting effect is good.

[0033] Specifically, three identical locking grooves 5 are provided, and the angle between the three locking grooves 5 is 120°. The advantage is that the locking grooves 5 are provided to cooperate with the locking rod 11 to fix the drill rod 1 and the connecting rod 6 together.

[0034] Specifically, the connecting ring 9, the shaft seat 10, the locking rod 11 and the rubber pad 12 are provided in three identical groups, and the locking rod 11 is adapted to the slot body 501. The advantage is that when the drill rod 1 needs to be fixed with the connecting rod 6, the drill handle 2 is aligned and plugged with the docking groove 13, and the locking rod 11 is rotated until the locking rod 11 is inserted into the slot body 501, so that the drill rod 1 is limited.

[0035] Embodiment 2: Figure 2-6 As shown, as an improvement to the previous embodiment.

[0036] Specifically, the lower end of the locking rod 11 is provided with an inclined surface, and the rubber pad 12 is made of silicone rubber. The advantage is that when the locking rod 11 is plugged into the slot body 501, the rubber pad 12 is in contact with the drill rod 1, thereby improving the stability of the drill rod 1.

[0037] Specifically, the inner wall of the casing 14 is provided with threads, and the vertical section of the casing 14 is in an "L"-shaped structure. The advantage is that the casing 14 is provided, and the casing 14 is threadedly locked with the connecting ring 9 and the locking rod 11 until the casing 14 is in tight contact with the limiting ring 7. At this time, the casing 14 presses and locks the locking rod 11, thereby reinforcing the fixing structure of the drill pipe 1 and the connecting rod 6.

[0038] Specifically, the outer wall of the connecting ring 9 and the outer wall of the locking rod 11 are both provided with threads, and the sleeve 14 is threadedly connected to the connecting ring 9 and the locking rod 11. The advantage is that, when the locking groove 5 is provided, when the drill rod 1 needs to be disassembled and replaced, the sleeve 14 is rotated to separate the sleeve 14 from the locking rod 11 and the connecting ring 9, and at this time, the spring 503 rebounds to push the top plate 504, and the locking rod 11 is pushed out of the groove body 501, so that the drill rod 1 can be easily removed, thereby improving the replacement efficiency of the drill bit.

[0039] Working principle: During use, when the drill rod 1 needs to be fixed with the connecting rod 6, align the drill shank 2 with the docking groove 13 and plug it, rotate the locking rod 11 until the locking rod 11 is inserted into the groove body 501, and the drill rod 1 is limited. At this time, the rubber pad 12 is in contact with the drill rod 1, which improves the stability of the drill rod 1. Use the casing 14 to thread-lock the connecting ring 9 and the locking rod 11 until the casing 14 is in tight contact with the limiting ring 7. At this time, the casing 14 presses and locks the locking rod 11 to reinforce the fixed structure of the drill rod 1 and the connecting rod 6. The installation speed is fast. When the drill rod 1 needs to be disassembled and replaced, rotate the casing 14 to separate the casing 14 from the locking rod 11 and the connecting ring 9. At this time, the spring 503 rebounds and pushes the top plate 504, pushing the locking rod 11 out of the groove body 501, and the drill rod 1 can be easily removed, thereby improving the efficiency of drill bit replacement.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure for a drill bit with a quick disassembly function, comprising a drill rod (1), characterized in that: The upper end of the drill rod (1) is provided with a drill shank (2), the outer side of the drill rod (1) is provided with a chip groove (3), the lower end of the drill rod (1) is provided with a cutter head (4), the outer side of the drill rod (1) is provided with a locking groove (5), the upper end of the drill shank (2) is provided with a connecting rod (6), the outer side of the connecting rod (6) is provided with a limiting ring (7), the lower end of the connecting rod (6) is provided with a connecting tube (8), the lower end of the connecting rod (6) is fixedly connected with a connecting ring (9), the lower end of the connecting rod (6) is fixedly connected with an axle seat (10), the lower end of the axle seat (10) is rotatably connected with a locking rod (11), the inner side of the locking rod (11) is provided with a rubber pad (12), the lower end of the connecting tube (8) is provided with a docking groove (13), the outer side of the connecting rod (6) is provided with a sleeve (14), and the outer side of the sleeve (14) is provided with an anti-slip rib (15); The locking groove (5) comprises a groove body (501), a telescopic groove (502), a spring (503) and a top plate (504); the inner wall of the groove body (501) is provided with a telescopic groove (502); the inner wall of the telescopic groove (502) is fixedly connected to a spring (503); and the end of the spring (503) is fixedly connected to the top plate (504).

2. A drill bit connection structure with quick disassembly and assembly function according to claim 1, characterized in that: The drill shank (2) is in a triangular structure, and the docking groove (13) is adapted to the drill shank (2).

3. A drill bit connection structure with quick disassembly and assembly function according to claim 1, characterized in that: The locking grooves (5) are provided in three identical ones, and the included angle of the three locking grooves (5) is 120°.

4. A drill bit connection structure with quick disassembly function according to claim 1, characterized in that: The connecting ring (9), the shaft seat (10), the locking rod (11) and the rubber pad (12) are provided in three identical groups, and the locking rod (11) is adapted to the groove body (501).

5. The drill bit connection structure with quick disassembly function according to claim 1, characterized in that: The lower end of the locking rod (11) is provided with an inclined surface, and the rubber pad (12) is made of silicone rubber.

6. A drill bit connection structure with quick disassembly and assembly function according to claim 1, characterized in that: The inner wall of the sleeve (14) is provided with threads, and the vertical cross-section of the sleeve (14) is in an "L"-shaped structure.

7. The drill bit connection structure with quick disassembly function according to claim 1, characterized in that: The outer wall of the connecting ring (9) and the outer wall of the locking rod (11) are both provided with threads, and the sleeve (14) is connected to the connecting ring (9) and the locking rod (11) by threads.

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